Outer surface of element for lighting fixture



FIG. 1 is a front view in elevation of an outer surface of an elementfor a lighting fixture showing my new design;

FIG. 2 is a right side view thereof, the left side being a mirror imagethereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines shown in the drawings are environmental only and formno part of the claimed design.

The ornamental design for an outer surface of element for lightingfixture, as shown and described.